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Elsevier

Elsevier Science

  • Carbon-13 NMR of Flavonoids

    • 1st Edition
    • Volume 39
    • P.K. Agrawal
    • English
    This detailed treatise is written for chemists who are not NMR spectroscopists but who wish to use carbon-13 NMR spectroscopy. It shows why measurement of carbon-13 NMR is needed and explains how the method can - or should - be used for rapid characterization of flavonoids, one of the most diverse and widespread groups of natural constituents.The first part of the book presents background information and discussion of the essential aspects of flavonoids and carbon-13 NMR spectroscopy and demonstrates its significant role in the revision of several earlier established chemical structures. It discusses various one- and two-dimensional NMR spectroscopic techniques and other relevant experimental methodologies for the interpretation of spectral details which enable individual resonance lines to be associated with the appropriate carbons in a molecule. The second part provides a comprehensive coverage of the carbon-13 chemical shifts of various classes and subclasses of flavonoids. It also illustrates how to utilize carbon-13 data to gain information for the determination of the nature, number and site of any substituent in flavonoids. Vital information for the differential and complete structure elucidation of the various classes of flavonoids by carbon-13 NMR shielding data is described in-depth in the third part of the book.The book will be welcomed by all those working in natural product chemistry who will appreciate the non-mathematical approach and the fact that such a wealth of theoretical and practical information has been assembled in a single volume.

  • Trace Elements in Igneous Petrology

    A Volume in Memory of Paul W. Gast
    • 1st Edition
    • Volume 5
    • C.J. Allègre + 1 more
    • English
    Trace Elements in Igneous Petrology, 5: Developments in Petrology: A Volume in Memory of Paul W. Gast focuses on the contributions and influence of Gast in petrology, including crystallization, magmatic processes, isotopic composition, and ocean ridge basalt chemistry. The selection first takes a look at quantitative models of trace element behavior in magmatic processes; application of trace elements to the petrogenesis of igneous rocks of granitic composition; and an assessment of local and regional isotopic equilibrium in the mantle. Discussions focus on evidence derived from time constraints, scale of isotopic disequilibrium, fractional crystallization, trace element modeling, geodynamics and tectonic setting, partition coefficients, quantitative models for trace elements, and parameter determination and inverse-problem solution. The publication then examines the isotopic composition of lead in oceanic basalt and its implication to mantle evolution; strontium isotopes in basalts from the Pacific Ocean basin; and trace elements in ocean ridge basalts. Concerns cover variations in ocean ridge basalt chemistry, trace elements in ocean ridge basalts, disequilibrium partial melting, seawater alteration, background for lead isotope tracer studies, and uranium, thorium, and lead concentrations in basalts. The book examines trace elements and anorthosite genesis, lead isotopes in Archaean plutonic rocks, early Archaean rocks and geochemical evolution of the earth's crust, and factors controlling the noble gas abundance patterns of deep-sea basalts. The selection is a valuable source of data for researchers interested in petrology.

  • Luminescence and the Solid State

    • 1st Edition
    • Volume 12
    • Richard C. Ropp
    • English
    Since the discovery of the transistor in 1948, the study of the solid state has been burgeoning. Recently, cold fusion and the ceramic superconductor have given cause for excitement. There are two approaches possible to this area of science, namely, that of solid state physics and solid state chemistry, although both overlap extensively. The former is more concerned with electronic states in solids (including electromagnetics) whereas the latter is more concerned with interactions of atoms in solids. The area of solid state physics is well documented, however, there are very few texts which deal with solid state chemistry. Luminescence and the Solid State has been written to fulfil this need. The concepts regarding luminescence and phosphors are unique and have been covered extensively providing a useful reference source for anyone requiring such knowledge as a basis for further study. The discussion on the defect state, which is handled in chapter two, can be applied to many other systems, e.g. ceramic superconductors. The book has extensive, useful equations and figures, the derivations of which are simple and easy to follow. This useful, comprehensive text can be used for self-study and should also prove invaluable in a graduate study as an introduction to the solid state and luminescence.

  • European Electronics Directory 1994

    Systems and Applications
    • 1st Edition
    • C.G. Wedgwood
    • English
    Companion volume to Components and Sub-Assemblies Directory, providing access to 8000 manufacturers, agents and representatives of electronics systems and equipment. Entries include names of key managers, addresses, fax/telephone numbers, and pocket descriptions of manufacturing and sales programmes. There is also a product index to track the companies involved in any given business lines.

  • Structural and Tectonic Modelling and its Application to Petroleum Geology

    Proceedings of Norwegian Petroleum Society Workshop, 18-20 October 1989, Stavanger, Norway
    • 1st Edition
    • Volume 1
    • R.M. Larsen + 3 more
    • English
    This monograph presents a unique combination of structural and tectonic modelling with applied petroleum geological problems. Focussing on the Norwegian Continental Shelf and neighbouring areas, it includes discussion covering all scales - from development of sedimentary basins, to formation of fractures and joints on a microscale - and from exploration, to the exploitation of hydrocarbons. The book's coverage of structural and tectonic modelling, petroleum geology applications, and the treatment of the Norwegian Continental Shelf should make this book an invaluable resource book for advanced students of structural and tectonic modelling, teachers, and researchers; as well as for geologists and geophysicists in the petroleum industry.

  • Robotics

    3rd Edition
    • 1st Edition
    • Architecture Technology Architecture Technology Corpor
    • English
    Please note this is a Short Discount publication.Thorough... revised, this authoritative report continues to provide a comprehensive, yet accessible introduction to Fixed Industrial Robots.This 1991/92 edition ensures that professionals involved in Factory Automation have a comprehensive reference source enabling them to keep abreast of all the key developments in this powerful and rapidly evolving technology.The report examines the different kinds of industrial robots from the following angles:• How they are programmed to perform certain tasks.• How they are integrated into the manufacturing process.• Their use in manufacturing plants for assembly, painting, sealant application and welding.Key features• Vision systems• Microprocessors• Expert systems• Industrial end effectors• Commercial end–of–arm tooling• Automatic guided vehiclesAlso• Robotics safety• Checking and evaluating robots• The economic justifications for robots• Employee support for robots.

  • Chemical Sensor Technology

    Volume 2
    • 1st Edition
    • Tetsuro Seiyama
    • English
    The subjects chosen for this second volume have been carefully selected by the international editorial board to cover new, important progress in this fast-developing field. With contributions from many prominent researchers working at the frontiers of the chemical sensor field, the book provides up-to-date information and inspiration to all readers.

  • Biological and Environmental Effects of Arsenic

    • 1st Edition
    • Volume 6
    • B.A. Fowler
    • English
    Topics in Environmental Health, Volume 6: Biological and Environmental Effects of Arsenic focuses on the properties, characteristics, and reactions of arsenic and its effects on the environment. The selection first tackles the mobilization of arsenic by natural and industrial processes and emissions, cycling, and effects of arsenic in soil ecosystems. Discussions focus on the effects of arsenic on plants and soil microorganisms, exposure through consumption, sources of arsenic, and mobilization of arsenic by natural processes and industrial activities. The publication then ponders on environmental reaction and analysis methods and arsenical metabolism and toxicity to freshwater and marine species. The text examines the metabolism of arsenic and epidemiology of human arsenic exposure, including acute and chronic effects by arsenic in man, absorption, tissue distribution and retention, and elimination and biological half-time. The publication then takes a look at the toxicity of arsenic and its compounds, as well as biological transformation of arsenic compounds in soil ecosystems and effects on plants; biotransformation of arsenic compounds and toxicity to freshwater and marine biota; and environmental transformation of arsenic in freshwater/marine ecosystems. The selection is a dependable reference for readers interested in the biological and environmental effects of arsenic.

  • Air Pollution by Nitrogen Oxides

    • 1st Edition
    • Volume 21
    • L. Grant + 1 more
    • English
    Studies in Environmental Science, Volume 21: Air Pollution by Nitrogen Oxides presents the proceedings of the US–Dutch International Symposium on Nitrogen Oxide, held in Maastricht, The Netherlands on May 24–28, 1982. This book provides research and development information related to the national and international policies on nitrogen oxides in the United States, The Netherland, Japan, and elsewhere in Europe. Organized into five sessions encompassing 94 chapters, this volume begins with an overview of the atmospheric cycle of nitrogen oxide in terms of source strength, destruction rates, and atmospheric chemistry. This text then examines the fundamental physical and chemical processes involved in the formation of nitrogen oxides. Other chapters consider the regional pulmonary deposition of nitrogen dioxide in man, guinea pigs, rats, and rabbits by using a general mathematical model formulation for the transport of gases in the lungs. This book discusses as well the emission control methods and systems with low nitrogen oxide capability for possible application in The Netherlands and other parts of Europe. This book is a valuable resource for government administrative officials, research scientists, air pollution control experts, and students.

  • Methods in Neurotransmitter and Neuropeptide Research

    • 1st Edition
    • Volume 11
    • S.H. Parvez + 2 more
    • English
    This two-part book provides the most advanced biochemical and histochemical analytical methods on neurotransmitters, neuromodulators, and neuropeptides described by international specialists. The biochemical methods include liquid chromatography/elect... liquid chromatography/fluor... and chemiluminescence detection, gas chromatography or liquid chromatography with mass spectrometry, and immunoassays.Morphol... and physiological methods are also described, including immunohistochemistry... in situ hybridization, in vivo microdialysis, electrophysiological analysis, microwave irradiation, electrophysiological analysis, micro-anatomical dissection, peptide sequence analysis, quantitative autoradiographic analysis, and isolated CNS preparations. The neurotransmitters and neuropeptides include catecholamines, indoleamines, histamine, polyamines, and various neuropeptides, and their related enzymes. The book is the most comprehensive, advanced and versatile volume on the biochemical, morphological and physiological analysis of neurotransmitters and neuropeptides.

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